2017 Trek Bikes Stache 9.8 Base S
Build
700C/29 in × 3 in
Insights
Somewhat upright stack and reach vs trend of hardtail trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 630mm |
| Reach | 393mm |
| Stack to Reach Ratio | 1.6:1 |
| Seat Tube Length, C-T | 394mm |
| Seat Tube Length, Effective Unknown | 735mm |
| Top Tube Length, Effective/Horizontal Unknown | 580mm |
| Top Tube Slope | 26.1deg |
| Head Tube Angle | 68.4deg |
| Seat Tube Angle | 68.4deg |
| Head Tube Length | 90mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 315.2mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 413.8mm |
| Front-Center | 675.1mm |
| Front-Center Horizontal | 671.2mm |
| Wheelbase | 1085mm |
| Fork Offset/Rake | 51mm |
| Trail | 98.5mm very high |
| Mechanical Trail | 91.5mm |
| Wheel Flop | 33.7mm |
| Standover Height | 77.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 117.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 145.2mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 3in |
| Tire Outer Diameter | 774.4mm |
| Bike Length with Tires | 1859.4mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/trail-mountain-bikes/stache/stache-9-8/p/17249/